How do lung capacity, tidal volume, vital capacity, reserve volume change because of emphysema?
EMPHYSEMA Total Lung Capacity (TLC) is increased Vital Capacity (VC) is typically diminished depending on the overall changes in RV and TLC in the emphysematous patient Reserve Volume … Small airway pathology (inflammation, accumulation of secretions, hypertrophy and hyperplasia of glands and smooth muscles) and loss of lung elastic recoil (and therefore diminished elastic stretch of small airways) lead to premature airway closure during a maximal expiration; this causes the RV to increase, and the VC to decrease.
